Robin Williams and politics

Actor-comedian Robin Williams was found dead Monday at age 63 in San Rafael, Calif. Over the years, he moved beyond his movie and TV roles to work on a number of political and social causes. Here are some of those moments.

Comedians Billy Crystal (right) and Robin Williams in association with a project called "Comic Relief" present a check for the homeless to Gov. Michael Dukakis, May 28, 1988, at the State House in Boston.